Union



May 7, 1929. R. E. WARREN ET AL UNONv Filed Sept. 19 1922 u w .NRE

Patented May 7, 192,9.

UNITED STATES *PATENTy i OFFICE.

ROY E. WARREN AND FEED MELo'iT, `0E HoUs'ioN, TEXAS.

UNION.

Application ined september' 19, i922. serial No. 589,274.

This invent-ion relates to new and useful improvements in a union for metallic tubes.

One object of the invention is to provide a union of the character described which will permit the connected tubes' to swivel, one with relation to the other and which, at the same time will provide a steam tight or water tight joint. Y

Another object of the invention is to provide a union of the character described whichv is of very simple construction, which may be readily assembled or taken apart and which at the same time will prevent the escape of water or steam through the joint.

With the above and other objects in view the invention has particular relation to certain novel features of construction, operal tion, and arrangement of parts, an example Cil of which is given in this speciiication and illustrated in the accompanying drawing, wherein Figure l shows a side view of the union partly in section. l

Figure 2 shows a longitudinal sectional view of another form thereof and,

Figure 3 ,shows a transverse sectional view, taken on the line 3-3 of Figure 2.

In the drawings, the numerals ljand-2 designate tubular members to be connected in such manner as to permit one to swivel with relation to the other; This type of union is particularly useful in connection with steam pressingmachines, in voperation of which it is desirable that the steam conducting pipes have steain tight but swiveling connections.

In the form shown in Figure l, the nu-l meral 3 designates the neck into which the tubing l is threaded. This neck is formed with an annular flange 4 and integral therewith there is the tubular sleeve 5. 'The numeral 6 designates a neck into which the tube 2 is threaded and formed integral with this neck are the concentric outer and inner sleeves 7 and 8 which are spaced apart, and between which the sleeve 5 is fitted, the free ends of said concentric sleeves abutting '4 closely against the flange 4, and the free end of the sleeve 5 abutting against the flange 9 with whichkthe sleeves 7 and 8 are integrally VIt is obvious that thetube 1 when connected rto the tube 2 by the connection described will be permitted to swivel relativeA to said last mentioned tube and at the 'same time a steam tight joint will be formed.

In the form shown in Figures 2 and 3 the flange 4 has two concentric sleeves 5 and 6 which are foimed integrally with and the sleeves 7 and-8, formed integrally with the fiange 9, of the neck 6 intermeshing with the sleeves 5 and 6. In this form, sliowniii Figure 2, the free ends of the sleeves y5 and 6 are formed with beveled faces as shown. In other respects the construction of Figures 1 and 2 are substantially similar.

'What we claim is A swivel union for connecting tubing comprising two nipples, each of which is piovided with an internally threaded neck, an outwardly' extending annular flange carried by each nipple, two relatively long concentric sleeves ycarried by the flange of each nipple and formed integrally therewith each sleeve being of greater length than diameter, and spaced apart, the sleeves of' each nipple intermeshing with the sleeves of the other nipple, the free ends of said sleeves abutting closely against theopposing-flange, andl said fiange 4 anld which are spaced apart Y ing flange and being screwed onto the outer end of the outer sleeve of the opposing nipple, said nipples being so disposed and connected to permit them `to relatively turn, or

swivel, on a common axis, the free end of y one of said sleeves being beveled and the opwhich is formed to receive said beveled end and in which said end fits snugly.

In testimony whereof we have signed our names.

` ROY E. WARREN.

FRED MELOTT. 

